They are sure that they can make ______ possible for their model cars to run without electricity.
A. so B. much C. that D. it
Germany nipped Ghana 1-0 in their last World Cup Group D game, _______ sent both teams into the last 16 at 2010 World Cup.
A. which B. where C. what D. that
The Internet gives people the chance to have the information _______ quickly and cheaply.
A. to deliver B. deliver C. delivered D. delivering
I have told you the truth. _______I keep repeating it?
A. Must B. Can C. May D. Will
阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
71．Expo 2010 Shanghai China ____________________ (在召开)on both banks of the Huangpu River in the city of Shanghai, China, from May 1 to October 31, 2010.（hold）
72．The official song of the 2010 World Cup in South Africa titled Waka Waka features many musical elements that_____________________（追溯到）the ancient times.(date)
73．He looks sleepy. He must_____________ (熬夜了)last night, writing the essay. (stay)
74．— Is Bob still performing?
— I’m afraid not. He is said ______________（离开）the stage already as he has become an official.(leave)
75．_________________ (适应) the tropical heat was more difficult than they had expected. (adjust)
76．When the survivor woke up, he wanted to know ____________ (是谁) that saved him from that burning house. (who)
77．The more ways we have of looking at a problem , ____________________ （越有可能）that we can find a solution. (likely)
78．His younger sister teaches in a secondary school, in front of _______________ (流淌着一条小河). (flow)
79．It is possible that the King of Stonehenge was linked to the stones: he __________________
(很可能参与了) in planning the monument, or in helping transport and pull up the stones. (hand)
80．Representatives attending Copenhagen Conference recommended that _______________ (采取严厉措施) to reduce carbon emission. (take)
The huge Florida wetland known as the Everglades is a slow-moving river 80 kilometres wide but only a few centimeters deep. People call the Everglades a “river of grass” because sawgrass covers most of it. Sawgrass is not really grass. It is a plant that has leaves edged with tiny sharp teeth that can easily cut through clothes—and skin!
Travel in the Everglades is difficult. You cannot walk through shallow water because the sawgrass will cut you. The water is too shallow for regular boats. So, we use an airboat. An airboat is a flat, open boat. Like an airplane, it has a big propeller to move it. The propeller is fixed on the rear of the boat. It makes a tremendous noise, but it does the job. The boat skims along the water’s surface. Although we can still get lost in an airboat, at least we are above the alligators(短吻鳄).
While hundreds of different kinds of animals live in the Everglades, the most famous is surely the alligator. Once endangered, alligators are now protected within Everglades National Park. Visitors are likely to see them both on land and in water.
For a long time, dangers have threatened the Everglades. Around 1900, some people felt this precious wetland should be drained (排干). They said it was just a big swamp and not good for anything. In the 1920s, there was a land boom in Florida. People wanted to build homes everywhere, including in the Everglades. They built canals, levees (防洪堤) , and other water systems that stopped the rivers flowing into the Everglades. Factories were built near rivers that flowed into the wetland. These factories dumped poisonous waste that damaged the Everglades ecosystem.
People are now working to preserve the Everglades National Park for the future. Right now, one big problem is the paperbark tree. This tree is an invader from Australia.
Paperbark trees soak up a lot of water. In the early 1900s, people brought them to Florida because they thought they would help drain the Everglades. However, the invaders adapted too well. Paperbark trees have taken over hundreds of thousands of acres of the Everglades and killed other trees. Scientists are cutting down these invaders or spraying them with herbicides (除草剂) to kill them.
1.Which helps to explain why it is difficult to travel in Everglades?
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A．Airboats may make a very big noise. |
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B．You may get lost when passing through. |
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C．Paperbark trees soak up too much water there. |
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D．Many different kinds of animals are to be protected. |
2.Why do people use airboats instead of normal boats?
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A．They have big propellers to move them faster than alligators. |
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B．The propeller makes loud noise so as to scare alligators. |
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C．Their flat bottom can skim along the water surface. |
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D．They can watch alligators without hurting them. |
3.The following measures were taken to drain the Everglades except that people______.
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A．built canals and levees to stop the rivers flowing into Everglades |
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B．built factories near rivers that flowed into the wetland |
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C．brought Paperbark to soak up water in Everglades |
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D．are cutting down these Paperbark trees |
4.The underlined word "invader" probably means something______.
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A．that moves in from another place |
B．that enters and takes control |
|
C．that has been brought in |
D．that is in danger |
